"Our charity nursery has improved their event marketing thanks to PosterMyWall flyers!" - Paula I wish I looked as good as you while waiting Feel free to spin in your chair while you wait Don’t forget to add a fun, relevant call-to-action button to your email. Boost your email opens with a punchy subject line. Keep your email subject line short and attention-grabbing. Let your imagination run wild. Try different email subject line styles to find what gets the most opens.